Improved fibrous compound for roofing and other purposes



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IMPROVED masons COMPOUND run noorme AND OTHER PURPOSES.

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TO ALL WHOM IT MAY CONCERN: a

Be it known that I, Roman O. LoWnEY, of Salem, in tbe'county of Washington, and State oi New York, have invented certain new and useful Improvements in the Manufacture ofFibrous Compound; and I do hereby declare that the following-inn full, clear, and exact description thereof, reference being bad to the accompany ing drawings, making partof this specification, and to the letters of'rofcrcnco marked thereon, like letters indicating like parts wherever they occur. I

To enable others skilled in the art to construct and use my'iuvention, I will proceed to describe it.

My invention consists in the an on of vegetable fibre, either alone or with other material, with the silicate of soda, and then treating it with nsulation of alum, or alum and salt, for the production of a new compound suitable for roofing and various purposes. I I II II I For the production of my articl u or compound, I take vegetable as, grgund or otherwise prepared, as for the manufacture of paper, and mix it with silicat at is condition it arms a pasty mass, and may then be formed -into blocks or spread upon roe s or 0 let surfaces like plaster, or rolled or pressed into shoots of any required size or thickness; or, the pasty mass may be moulded or pressed into pipes, buckets, tubs, or any other desired article, either for'use or ornament. When thus formed, I treat the compound or article with I a solution of slum of any kind, or of alum and salt combined, which converts the silicate of soda into an insoluble silicate that firmly cements the fibrous particles, and at the same time renders the material fire and water-proof. In covering roofs, the plastic compound may be spread like a mortar over thereof, and then washed with the solution afterward. It thus forms an exceedingly strong roofing-material, that will not crack or check, and is not affected by heat or cold, and that is thorou hly fire proof. The material or compound thus formed is somewhat pliable, and hence utensils or articles manufactured, from it are very strong and tough and not easily broken or injured. I 7 I I Borax may beaddod tothe solution, if desired, but I -do not onsiderit'oi any special advantage, the effect being apparently the samc without as 11itb it. r t. I

For some purposes, when it is desired to produce coai'scr and heavier articles,-'I mi x.1/ith thefibre a portion ofsand or other similar matter, instead of using fibre Ilo'nmwith the silicate oi soda, tho uftcr-t r Fn t n I ont being the some as already described. i

I I I I 1 In all cases, after the materials have been rnixcd n'i tli the sili' atggisgfln, and sprinln-led or treated with the,- solution, and have become sufiiciently hard to be handled, the block-or article, in \vlratcyer form it may be, is then immersed in the solution, and boiled or kept bot thereinfor several hours, the lpngth (if time depending on its size and other circumstances. Where it is used in the form oi'n mortar, for-rooting and similar purposes, it is obvious that this cannot be done, and in such cases I prcficr .tonpply thesolution hot, in the first instance, and-then wash with water. I I, V I, II II I m In .case there should be an excess of the solution remaining i any solution that will decompose it'or render it'insoluble. I Having thus described my invention, wbat I claim, is I I I I I The material produced by the union of vegetable fibrer he aloiroor with shndnml similar substances, t with silicltte of soda, and treated with ,a solution of ulum,-orfof nl m and salticombinod, substantially as described. I I II I ".r

I I I i I I Y It. 0, LOWREY.v -'Witnesses: I I

, W. C. Donna,

1. T. Dongs,

was

n l t he bloclc' or material, itnnnybo treated avith 

